Curated OER
Empirical Formulas
Students investigate empirical formulas for molecules. In this empirical formulas lesson plan, students use paper ions to form formulas and they show these are empirical formulas. They use ions of carbon and hydrogen showing electron...
Curated OER
Target Earth
Space scientists use water displacement to determine the mass of a cubic centimeter mini meteorite, and then use it as a small-scale representative of an asteroid. They figure out the orbital velocity of an asteroid. Then they use a...
Curated OER
Areas and Volumes
Tenth graders calculate the area and the volumes of polygons. In this geometry lesson, 10th graders review the formulas used to solve for the area and volume and explain to the class how they arrived at their answer. They search online...